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773: Chicago, covers most of the geographical area of Chicago except the downtown Chicago Loop, which is in area code 312. 815/779: Northern Illinois outside of the immediate Chicago area including Joliet, Kankakee, LaSalle, DeKalb, and Rockford. Area code 815 was overlaid with area code 779 in 2007. 847/224: North and northwest suburbs of ...
On October 7, 2007, area code 331 began overlaying area code 630, making ten-digit dialing mandatory in the area. The Illinois side of the Chicago area– 312 / 773 / 872 , 708, 847/224, 630/331 and portions of 815/779 –is one of the largest local calling areas in the United States; with few exceptions, no long-distance charges are applied ...
Chicago Ridge is located at 41°42′9″N 87°46′43″W (41.702482, -87.778690). [6] According to the 2021 census gazetteer files, Chicago Ridge has a total area of 2.27 square miles (5.88 km 2), all land. [7] Located in Cook County, the village is 18 miles (29 km) southwest of the Loop.
Area code 708 was Illinois' first new area code since 309 had been created in 1957, and the second new code for the state since the announcement of the original North American area codes in 1947, when the state was divided into four numbering plan areas (217, 312, 618, and 815). The Illinois side of the Chicago area–312/773/872, 708/464, 847 ...
Area codes 847 and 224 are telephone area codes in the North American Numbering Plan (NANP) for the U.S. state of Illinois. The numbering plan area (NPA) comprises the northeastern part of Illinois and many northern suburbs of Chicago. This includes most of Lake County, the northern part of Cook County, the northern part of Kane County, and a ...
Area code 312. Coordinates: 41°52′48″N 87°37′54″W. All NPAs within Illinois. Area code 312 is a telephone area code in the North American Numbering Plan for the city of Chicago, including downtown, the Chicago Loop, and its immediate environs. The numbering plan area is completely surrounded by area code 773, which serves the rest of ...
1993: split to create 905. 2001: overlaid by 647. 2013: overlaid by 437. 2025: overlaid by 942. area code 387 is reserved as a fifth code for the region. 417. Missouri (Springfield, Joplin, Branson, Lamar, Lebanon, and most of southwestern Missouri) 1950. created from parts of the area codes 314 and 816.
List of Illinois area codes. 0–9. Area codes 217 and 447. Area codes 309 and 861. Area code 312. Area code 447. Area codes 618 and 730. Area codes 630 and 331. Area codes 708 and 464.